Dead Rising 3 received a whopping 13GB update yesterday, and it was presumed to be in preparation for the Xbox One launch title’s first DLC pack; Operation Broken Eagle. In fact, it goes a little deeper than that, as Microsoft has now explained.

Dead Rising 3 features co-op for two players, but at one time Capcom Vancouver tested the sandbox game with up to four survivors at once. However, producer Mike Jones has revealed that it broke down the game’s network fidelity and was ultimately pared back in time for Xbox One’s release.

Dead Rising 3 and Crimson Dragon are just two titles being showcased by Microsoft at Tokyo Games Show right now. The company has sent over a new Crimson Dragon gameplay videos, as well as details and screens for both Xbox One games. See it all here.